68143375868 has 12 divisors (see below), whose sum is σ = 119816079432. Its totient is φ = 33910210320.

The previous prime is 68143375843. The next prime is 68143375913. The reversal of 68143375868 is 86857334186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40368455 + ... + 40370142.

It is an arithmetic number, because the mean of its divisors is an integer number (9984673286).

Almost surely, 2^68143375868 is an apocalyptic number.

It is an amenable number.

68143375868 is a deficient number, since it is larger than the sum of its proper divisors (51672703564).

68143375868 is a wasteful number, since it uses less digits than its factorization.

68143375868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80738812 (or 80738810 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 59.

The spelling of 68143375868 in words is "sixty-eight billion, one hundred forty-three million, three hundred seventy-five thousand, eight hundred sixty-eight".